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ES-F-LF870V

S P E C I F I C AT I O N S H E E T

FEBCO product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise mea-surements, please contact FEBCO. FEBCO reserves the right to change or modify product design, construction, specifications, or materialswithout prior notice and without incurring any obligation to make such changes and modifications on FEBCO products previously or subse-quently sold.

Job Name Contractor

Job Location Approval

Engineer Contractors P.O. No.

Approval Representative

MasterSeriesLF870V

Double Check BackflowPrevention AssemblySize: 212" - 8" (65mm - 200mm)

MODEL LF870V DOUBLE CHECK ASSEMBLY(Shown in standard orientation)

LEAD FREE*

The FEBCO MasterSeries LF870V Double Check Assembly is specificallydesigned to protect against possible backpressure and backsiphonageconditions for non-health hazard (i.e., pollutant) application in accordancewith Local Governing Water Utility Code. This Backflow Assembly is primar-ily used on potable drinking water systems where Local Governing Codemandates protection from non-potable quality water being pumped orsiphoned back into the potable water system.

The LF870V features Lead Free* construction to comply with low leadinstallation requirements. The Lead Free* Double Check Assembly shallcomply with state codes and standards, where applicable, requiringreduced lead content.

Features Inline Serviceable Assembly

Horizontal N-Pattern Installations

Vertical-Up Z-Pattern Installations

No Special Tools Required for Servicing

Captured Modular Spring Assembly

Reversible & Replaceable Discs

Field Replaceable Seats

Ductile Iron Valve Body Design

Stainless Steel Check Components Winterization feature with disc retainers and valve body drain ports

Clapper Check Assembly

Commonality between 1st & 2nd Check Components

Captured O-ring Design

SpecificationsThe FEBCO MasterSeries LF870V Double Check Valve Assembly shall beinstalled on the potable water supply and at each point of cross-connectionto protect against possible backpressure and backsiphonage conditions fornon-health hazard (i.e., pollutant) applications. The assembly shall consist oa main line valve body composed of two (2) independently acting approvedclapper style check modules with replaceable seats and disc rubbers.Servicing of both check modules does not require any special tools andare accessed through independently top entry covers. This assembly shallbe fitted with AWWA Compliant inlet/outlet resilient seated shutoff valves;when used on a Fire-Sprinkler application, the assembly shall be fitted withapproved UL/FM inlet/outlet resilient seated shutoff valves and containfour (4) properly located resilient seated test cocks as specified by AWWAStandard C510. The assembly shall be approved for horizontal and/or ver-tical-up installations while meeting the requirements of AWWA Standard

C510 flow and pressure loss performance parameters.

IMPORTANT: INQUIRE WITH GOVERNING AUTHORITIESFOR LOCAL INSTALLATION REQUIREMENTS

*The wetted surface of this product contacted by consumablewater contains less than 0.25% of lead by weight.

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Second Spring Assembly

Second Check Assembly

Test Cock #4

Test Cock #3

First Spring Assembly

First Check Assembly

Shutoff Valve #1 Shutoff Valve #2

Test Cock #1

Test Cock #3

Test Cock #4

Test Cock #2

Test Cock #1

First Check Assembly

First Spring Assembly

Second Check Assembly

Second Spring Assembly

Options - SuffixOSY: UL/FM Approved OS&Y Gate Valves [ANSI/AWWA C515 Compliant]

NRS: Non-Rising Stem Gate Valves [ANSI/AWWA C509 Compliant]

LG: Less Shut-off valves; This is NOT an APPROVED ASSEMBLY

Example Ordering Description:

4 LF870V-OSY - Valve Assembly fitted with OS&Y Shutoff Valves

Available Components

Wye Strainer: FDA Approved [ASME B16.1 Class 125 & AWWA

Class D Flange]

Series 611 Valve Setter: MJ x MJ - Mechanical Joint x Mechanical Joint[AWWA C111/A21.11]

MJ x FL - Mechanical Joint x Flange[AWWA C111/A21.11; ASME B16.1 Class 125/AWWA Class D Flange]

FL x FL Flange x Flange[ASME B16.1 Class 125 & AWWA Class DFlange]

Assembly Flow Orientation:Horizontal (N-Pattern 212 8) - Approved by FCCCHR-USC, ASSE,

cULus, FM, IAPMO

Vertical Up (Z-Pattern 212 8) - Approved by FCCCHR-USC, ASSE,cULus, FM, IAPMO

MaterialsBelow is a general materials list of the Model LF870V. All assemblies size212 through 8 is similar in materials and construction. Please contactyour local FEBCO Representative if you require further information.

Main Valve Body: Ductile iron Grade 65-45-12

Coating: Fusion epoxy coated internal and external AWWA C550-90

Shutoff Valves: NRS resilient wedge gate valve AWWA C509 (Standard)

OSY resilient wedge gate valve AWWA C515 (UL/FM)

Check Seats: Stainless Steel

Disc Holder: Stainless Steel

Elastomer Disc: Silicone

Spring: Stainless Steel

Clamp: AWWA C606

Approvals Standards: Approved by the Foundation for Cross-Connection Control and Hydrauli

Research at The University of Southern California [FCCCHR-USC]

ASSE 1015 Listed

**UL Classified [US & Canada]

**FM Approved

IAPMO

AWWA Standard C510 Compliant

End Connections: Compliant to ASME B16.1 Class 125 & AWWA ClassD Flange

**Assembly configured with UL/FM Approved OS&Y RW Gate Valves. Less gate

valve assemblies are not UL/FM approved configurations.

Pressure - TemperatureMax. Working Pressure: 175 psi (12.1 bar)

Min. Working Pressure: 10 psi (0.7 bar)

Hydrostatic Test Pressure: 350 psi (24.1 bar)

Hydrostatic Safety Pressure: 700 psi (48.3 bar)

Temperature Range: 33F - 140F (0.5C- 60C) Continuous

Shutoff Valve #1 Shutoff Valve #2

1015

** **

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Model LF870VStandard Orientation(N-Pattern)

Model LF870VVertical Orientation(Z-Pattern)

Gate Valve Side View ClearanceNote: The Model LF870V is shipped in the standard(N-Pattern) orientation as shown above.

Dimensions Weights

F

A

BC

E

D

I**J***

H

E

D

C

G

B

A

F

Below are the nominal dimensions and physical weights for the ModelLF870V size 212" through 8". Allowances must be made for normalmanufacturing tolerances. Please visit our website to download a copyof this products installation instructions, or contact your local FEBCORepresentative for more information.

LF870V

SIZE (DN) DIMENSIONS WEIGHT****

A B C D E F G H I** J*** NRS OSY

in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg. lbs. kg.

212 65 2534 654 1212 318 614 159 2414 616 1658 422 1358 346 2714 692 312 89 1258 321 1638 416 197 89 201 91

3 80 2534 654 1212 318 614 159 2414 629 1658 422 1418 359 2814 718 334 95 1278 327 2214 565 223 101 227 103

4 100 2778 708 14 356 7 178 2634 680 1734 451 1512 394 31 787 412 114 1438 365 2314 591 320 145 332 151

6 150 3214 819 16 406 8 203 3214 819 2158 548 1858 473 3714 946 512 140 1878 479 3018 765 492 223 512 232

8 200 3712 953 1812 470 914 235 3638 324 2478 632 2034 527 4112 1054 634 172 2312 597 3734 959 782 355 810 367

Notes:

** Indicates nominal dimensions with NRS Gate Valves

*** Indicates nominal dimensions with OSY Gate Valves (Full Open Position)

**** Indicates weight of complete Backflow Assemblies with specified Gate Valves

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